INTMDB-865: Fix cluster tests (#1238)

Author: andreaangiolillo

GNUmakefile

@@ -37,7 +37,7 @@ test: fmtcheck
 .PHONY: testacc
 testacc: fmtcheck
 	@$(eval VERSION=acc)
-	TF_ACC=1 go test $(TEST) -run '$(TEST_REGEX)' -v -parallel 20 $(TESTARGS) -timeout $(ACCTEST_TIMEOUT) -cover -ldflags="$(LINKER_FLAGS)"
+	TF_ACC=1 go test $(TEST) -run '$(TEST_REGEX)' -v -parallel 5 $(TESTARGS) -timeout $(ACCTEST_TIMEOUT) -cover -ldflags="$(LINKER_FLAGS)"
 
 .PHONY: testaccgov
 testaccgov: fmtcheck

mongodbatlas/resource_mongodbatlas_advanced_cluster_test.go

@@ -558,7 +558,7 @@ resource "mongodbatlas_advanced_cluster" "test" {
   project_id   = %[1]q
   name         = %[2]q
   cluster_type = "REPLICASET"
-  retain_backups_enabled = "true"
+  retain_backups_enabled = "false"
 
   replication_specs {
     region_configs {
@@ -581,7 +581,7 @@ resource "mongodbatlas_advanced_cluster" "test" {
   project_id   = %[1]q
   name         = %[2]q
   cluster_type = "REPLICASET"
-  retain_backups_enabled = "true"
+  retain_backups_enabled = "false"
 
   replication_specs {
     region_configs {